Earning Per Common Share (Schedule of Earnings Per Share, Basic and Diluted) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Numerator for basic and diluted earnings per common share:
Net income	$ 4,940	$ 3,024	$ 2,918	$ 602
Denominator:
Weighted average shares outstanding (shares)	10,365	10,335	10,358	10,327
Denominator for basic earnings per common share (shares)	10,365	10,335	10,358	10,327
Effect of dilutive securities:
Other stock compensation plans (shares)	119	148	119	200
Dilutive potential common shares (shares)	119	148	119	200
Denominator for diluted earnings per common share - adjusted weighted average shares outstanding and assumed conversions (shares)	10,484	10,483	10,477	10,527
Basic earnings per common share (usd per share)	$ 0.48	$ 0.29	$ 0.28	$ 0.06
Diluted earnings per common share (usd per share)	$ 0.47	$ 0.29	$ 0.28	$ 0.06

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Number of additional shares included in diluted EPS for potentially dilutive effect of nonvested equity-based payment award containing forfeitable rights to dividends or dividend equivalents, whether paid or unpaid.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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